n-Type anatase-phase one-dimensional TiO2 nanostructure arrays coated with nanoparticles of Cu or CuPt have emerged as high performance photocatalysts for both photooxidation and photoreduction. The properties of the catalyst-promoter interface are recognized to be critical to this high performance but are largely unknown. Using X-ray and ultraviolet photoelectron spectroscopies (XPS/UPS), we p...

The simultaneous decomplexation of Cu-EDTA and electrodeposition recovery of Cu(2+) ions was attempted in a photoelectrocatalytic (PEC) system using TiO2/Ti as the anode and stainless steel as the cathode. At a current density of 0.5 mA/cm(2), removal efficiencies of 0.05 mM Cu-EDTA by photocatalysis, electrooxidation, and PEC processes were determined to be 15, 43, and 72% at 3 h, respectively...

The aim of this study was to investigate the effects reaction temperature on photocatalytic activity TiO2 with Pd and Cu cocatalysts. N2 sorption, transmission electron microscopy high-resolution were used characterize specific surface area, pore volume, size, morphology metal distribution catalysts. destruction methylene blue under UV light irradiation test its activity. concentration in water...

Perkembangan nanoteknologi sebagai nanomaterial telah banyak dimanfaatkan salah satunya dalam bentuk nanokomposit. Nanokomposit diaplikasikan fotokatalis untuk mendegradasi logam berat dan dewasa ini penelitian mengenai manfaat nanokomposit bahan antibakteri. Penelitian bertujuan menganalisis aktivitas antibakteri dari TiO2/Cu TiO2/CuO hasil sintesis terhadap Bacillus cereus. Metode yang diguna...

Major and minor elements of successively collected 70 Middle Triassic radiolarian bedded cherts from the Mino Belt in central Japan were studied. In order to reveal pre-diagenetic, primary geochemical signatures related to marine biogeochemical cycles, composite data of chert-shale couplets in addition to raw data were examined. The results show that Mn, Cu, Sr, Ba and P were supplied significa...

The principal purpose of this study is to present a new design for preparing highly active immobilized gold nanoparticle-based plasmonic photocatalysts. Gold nanoparticles were loaded on rutile TiO2 particles with a mean size of 80 nm (Au/TiO2) by the deposition precipitation method. The surface of SnO2 particles with a mean size of 100 nm was modified by copper(ii) oxide clusters (CuO/SnO2) wi...

We report a nitrogen-doped carbon nanodot (N-Cdot)/TiO2 nanowire photoanode for solar-driven, real-time, and sensitive photoelectrochemical probing of the cellular generation of H2S, an important endogenous gasotransmitter based on a tunable interfacial charge carrier transfer mechanism. Synthesized by a microwave-assisted solvothermal method and subsequent surface chemical conjugation, the obt...

One of the drawbacks of typical dye-sensitized solar cells (DSCs) is their high cost and the high electrical resistance of the transparent conducting substrate. In conventional sandwich-type DSCs, only one of the FTO substrates can be replaced by a metal substrate. We investigated an all-metal-electrode single-sided DSC in which interpenetrated bracken-like Cr electrodes were created using phot...

In this work, new samples of PVA-TiO2/Cu nanocomposites were prepared via the casting method. The examined using different analytical methods. An XRD analysis showed semi-crystalline nature PVA polymer, as well showing a decrease in degree crystallinity structure result addition mixed nanoparticles. TEM images indicate spherical shape Cu NPs, with size ranging from 2 to 22 nm, and rectangular T...